Aqueous coating compositions containing aminosiloxane ester copolymer and polyurethane binder, and methods of making and use thereof

By preparing an aqueous coating composition comprising an aminosiloxane ester copolymer, a polyurethane binder, and a surfactant, the shortcomings of existing aqueous leather coatings in terms of low coefficient of friction are overcome, and improved tactile properties and abrasion resistance are achieved.

CN122138989APending Publication Date: 2026-06-02DOW GLOBAL TECHNOLOGIES LLC +1
View PDF 25 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DOW GLOBAL TECHNOLOGIES LLC
Filing Date
2024-10-31
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing water-based leather coatings are insufficient in improving the low coefficient of friction and are difficult to meet performance requirements.

Method used

A waterborne coating composition was prepared by combining an aminosiloxane ester copolymer and a polyurethane binder with a surfactant and water. The coating was formed by mixing to reduce the coefficient of friction.

Benefits of technology

A coating composition with a low coefficient of friction is provided, which improves the tactile properties and abrasion resistance of leather.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure SMS_1
    Figure SMS_1
  • Figure SMS_6
    Figure SMS_6
  • Figure SMS_7
    Figure SMS_7
Patent Text Reader

Abstract

A waterborne coating composition comprising an aminosiloxane copolymer, a polyurethane polymer, a surfactant, and water. The waterborne coating composition can be prepared by mixing an aqueous emulsion comprising the aminosiloxane copolymer, surfactant, and water with an aqueous polyurethane emulsion or dispersion. The waterborne coating composition can be used for leather treatment. The waterborne coating composition can be combined with a crosslinking agent, applied to a leather substrate, and dried to remove water, thereby providing a coating with a low coefficient of friction on the leather substrate.
Need to check novelty before this filing date? Find Prior Art